Please help! its due at the end of class.

2.down is hypotheses and 23.across is experiment

Explanation:

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the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

11 players on a field that has a maximum of 11 players